https://stackoverflow.com/questions/78473147/net-serializing-a-complex-dto-to-json-string | C# Online Compiler

https://stackoverflow.com/questions/78473147/net-serializing-a-complex-dto-to-json-string by dbc_MinLength

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using System.Text.Json;
using System.Text.Json.Serialization;
using System.Text.Json.Serialization.Metadata;
using System.Text.Json.Nodes;

using NUnit.Framework; // Throws NUnit.Framework.AssertionException

//https://stackoverflow.com/questions/78473147/net-serializing-a-complex-dto-to-json-string

#nullable enable

[JsonDerivedType(typeof(ChangeBucketDto), "changeBucketDto"), JsonDerivedType(typeof(TrackedChangeDto), "trackedChangeDto")]
public class Dto
{
    /// <summary>
    /// The unique identifier of the entity
    /// </summary>
    [JsonPropertyName("key")]
    public required string Key { get; set; }
}

public class ChangeBucketDto : Dto
{
    [JsonRequired]
    [JsonPropertyName("text")]
    public required string Text { get; set; }
    [JsonRequired]
    [JsonPropertyName("changes")]
    public required List<TrackedChangeDto> Changes { get; set; }
}

public class TrackedChangeDto : Dto
{
    [JsonRequired]
    [JsonPropertyName("origin")]
    public required ChangeOrigin Origin { get; set; }
    [JsonPropertyName("oldValue")]
    public JsonNode? OldValue { get; set; }
    [JsonPropertyName("newValue")]
    public JsonNode? NewValue { get; set; }
    [JsonRequired]
    [JsonPropertyName("changeType")]
    public required string ChangeType { get; set; }
    [JsonRequired]
    [JsonPropertyName("displayOrder")]
    public required List<string> DisplayOrder { get; set; }
    [JsonRequired]
    [JsonPropertyName("lastModified")]
    public required DateTime LastModified { get; set; }
    [JsonRequired]
    [JsonPropertyName("live")]
    public required bool Live { get; set; }
}

public class ChangeOrigin
{
	[JsonPropertyName("ContainerName")]
	public string? ContainerName { get; set; }

	[JsonPropertyName("FileName")]
	public string? FileName { get; set; }
}

    class TestClass
    {
        public static void Test()
        {
			var inputOptions = new JsonSerializerOptions
			{
			};
			
			var inputStringified = GetInputJson();
			
			var json = JsonSerializer.Deserialize<List<ChangeBucketDto>>(inputStringified, inputOptions);
			
			var options = new JsonSerializerOptions
			{
				WriteIndented = true,
			};
			var stringified = JsonSerializer.Serialize(json, options);
			
			Console.WriteLine(stringified);
			
			Assert.That(JsonNode.DeepEquals(JsonSerializer.Deserialize<JsonNode>(inputStringified, options), JsonNode.Parse(stringified)));
		}	
		
		static string GetInputJson() =>
"""
[
  {
    "text": "Vragen",
    "changes": [],
    "key": "questions"
  },
  {
    "text": "Berichten",
    "changes": [
      {
        "origin": {
          "ContainerName": "answers",
          "FileName": "answers.json"
        },
        "oldValue": {
          "key": "Foo",
          "languages": [
            { "NL": "Bor" },
            { "EN": "Bar" }
          ],
          "type": "message"
        },
        "newValue": {
          "key": "Foo",
          "languages": [
            { "NL": "Bar" },
            { "EN": "Bar" }
          ],
          "type": "message"
        },
        "changeType": "Update",
        "displayOrder": [
          "key",
          "languages",
          "type"
        ],
        "lastModified": "2024-05-13T17:23:30.509Z",
        "live": true,
        "key": "change-highlights-Maintenance"
      }
    ],
    "key": "answers"
  },
  {
    "text": "FAQs",
    "changes": [],
    "key": "faqs"
  },
  {
    "text": "Dialogen",
    "changes": [],
    "key": "dialogs"
  },
  {
    "text": "Highlights",
    "changes": [
      {
        "origin": {
          "ContainerName": "highlights",
          "FileName": "highlights.json"
        },
        "oldValue": {
          "key": "Foo",
          "languages": [
            { "NL": "Bor" },
            { "EN": "Bar" }
          ],
          "enabled": "true",
          "repeat": "true",
          "timeSpan": 7,
          "timeStampFrom": "2023-12-13T11:50",
          "timeStampTo": "2023-12-13T17:00"
        },
        "newValue": {
          "key": "Foo",
          "languages": [
            { "NL": "Bar" },
            { "EN": "Bar" }
          ],
          "enabled": "true",
          "repeat": "true",
          "timeSpan": 7,
          "timeStampFrom": "2023-12-13T11:50",
          "timeStampTo": "2023-12-13T18:00"
        },
        "changeType": "Update",
        "displayOrder": [
          "key",
          "languages",
          "enabled",
          "repeat",
          "timeSpan",
          "timeStampFrom",
          "timeStampTo"
        ],
        "lastModified": "2024-05-13T17:23:30.509Z",
        "live": true,
        "key": "change-highlights-Maintenance"
      }
    ],
    "key": "highlights"
  },
  {
    "text": "Groepsincidenten",
    "changes": [],
    "key": "groupincidents"
  },
  {
    "text": "Kennisbanken",
    "changes": [],
    "key": "knowledgesources"
  }
]
""";
	}

	public static partial class JsonExtensions
	{
		public static ref Utf8JsonReader ReadAndAssert(ref this Utf8JsonReader reader) { if (!reader.Read()) { throw new JsonException(); } return ref reader; }
		public static T ThrowOnNull<T>(this T? value) where T : class => value ?? throw new ArgumentNullException();
	}

	public class Program
	{
		public static void Main()
		{
			Console.WriteLine("Environment version: {0} ({1}), {2}", System.Runtime.InteropServices.RuntimeInformation.FrameworkDescription , Environment.Version, Environment.OSVersion);
			Console.WriteLine("System.Text.Json version: " + typeof(JsonSerializer).Assembly.FullName);
			Console.WriteLine();

			try
			{
				TestClass.Test();
			}
			catch (Exception ex)
			{
				Console.WriteLine("Failed with unhandled exception: ");
				Console.WriteLine(ex);
				throw;
			}
		}
	}

​x
 
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
​
using System.Text.Json;
using System.Text.Json.Serialization;
using System.Text.Json.Serialization.Metadata;
using System.Text.Json.Nodes;
​
using NUnit.Framework; // Throws NUnit.Framework.AssertionException
​
//https://stackoverflow.com/questions/78473147/net-serializing-a-complex-dto-to-json-string
​
#nullable enable
​
[JsonDerivedType(typeof(ChangeBucketDto), "changeBucketDto"), JsonDerivedType(typeof(TrackedChangeDto), "trackedChangeDto")]
public class Dto
{
    /// <summary>
    /// The unique identifier of the entity
    /// </summary>
    [JsonPropertyName("key")]
    public required string Key { get; set; }
}
​
public class ChangeBucketDto : Dto
{
    [JsonRequired]
    [JsonPropertyName("text")]
    public required string Text { get; set; }
    [JsonRequired]
    [JsonPropertyName("changes")]
    public required List<TrackedChangeDto> Changes { get; set; }
}
​
public class TrackedChangeDto : Dto
{
    [JsonRequired]
    [JsonPropertyName("origin")]
    public required ChangeOrigin Origin { get; set; }
    [JsonPropertyName("oldValue")]
    public JsonNode? OldValue { get; set; }
    [JsonPropertyName("newValue")]
    public JsonNode? NewValue { get; set; }
    [JsonRequired]
    [JsonPropertyName("changeType")]
    public required string ChangeType { get; set; }
    [JsonRequired]
    [JsonPropertyName("displayOrder")]
    public required List<string> DisplayOrder { get; set; }
    [JsonRequired]
    [JsonPropertyName("lastModified")]
    public required DateTime LastModified { get; set; }
    [JsonRequired]
    [JsonPropertyName("live")]
    public required bool Live { get; set; }
}
​
public class ChangeOrigin
{
    [JsonPropertyName("ContainerName")]
    public string? ContainerName { get; set; }
​
    [JsonPropertyName("FileName")]
    public string? FileName { get; set; }
}
​
    class TestClass
    {
        public static void Test()
        {
            var inputOptions = new JsonSerializerOptions
            {
            };
            
            var inputStringified = GetInputJson();
            
            var json = JsonSerializer.Deserialize<List<ChangeBucketDto>>(inputStringified, inputOptions);
            
            var options = new JsonSerializerOptions
            {
                WriteIndented = true,
            };
            var stringified = JsonSerializer.Serialize(json, options);
            
            Console.WriteLine(stringified);
            
            Assert.That(JsonNode.DeepEquals(JsonSerializer.Deserialize<JsonNode>(inputStringified, options), JsonNode.Parse(stringified)));
        }   
        
        static string GetInputJson() =>
"""
[
  {
    "text": "Vragen",
    "changes": [],
    "key": "questions"
  },
  {
    "text": "Berichten",
    "changes": [
      {
        "origin": {
          "ContainerName": "answers",
          "FileName": "answers.json"
        },
        "oldValue": {
          "key": "Foo",
          "languages": [
            { "NL": "Bor" },
            { "EN": "Bar" }
          ],
          "type": "message"
        },
        "newValue": {
          "key": "Foo",
          "languages": [
            { "NL": "Bar" },
            { "EN": "Bar" }
          ],
          "type": "message"
        },
        "changeType": "Update",
        "displayOrder": [
          "key",
          "languages",
          "type"
        ],
        "lastModified": "2024-05-13T17:23:30.509Z",
        "live": true,
        "key": "change-highlights-Maintenance"
      }
    ],
    "key": "answers"
  },
  {
    "text": "FAQs",
    "changes": [],
    "key": "faqs"
  },
  {
    "text": "Dialogen",
    "changes": [],
    "key": "dialogs"
  },
  {
    "text": "Highlights",
    "changes": [
      {
        "origin": {
          "ContainerName": "highlights",
          "FileName": "highlights.json"
        },
        "oldValue": {
          "key": "Foo",
          "languages": [
            { "NL": "Bor" },
            { "EN": "Bar" }
          ],
          "enabled": "true",
          "repeat": "true",
          "timeSpan": 7,
          "timeStampFrom": "2023-12-13T11:50",
          "timeStampTo": "2023-12-13T17:00"
        },
        "newValue": {
          "key": "Foo",
          "languages": [
            { "NL": "Bar" },
            { "EN": "Bar" }
          ],
          "enabled": "true",
          "repeat": "true",
          "timeSpan": 7,
          "timeStampFrom": "2023-12-13T11:50",
          "timeStampTo": "2023-12-13T18:00"
        },
        "changeType": "Update",
        "displayOrder": [
          "key",
          "languages",
          "enabled",
          "repeat",
          "timeSpan",
          "timeStampFrom",
          "timeStampTo"
        ],
        "lastModified": "2024-05-13T17:23:30.509Z",
        "live": true,
        "key": "change-highlights-Maintenance"
      }
    ],
    "key": "highlights"
  },
  {
    "text": "Groepsincidenten",
    "changes": [],
    "key": "groupincidents"
  },
  {
    "text": "Kennisbanken",
    "changes": [],
    "key": "knowledgesources"
  }
]
""";
    }
​
    public static partial class JsonExtensions
    {
        public static ref Utf8JsonReader ReadAndAssert(ref this Utf8JsonReader reader) { if (!reader.Read()) { throw new JsonException(); } return ref reader; }
        public static T ThrowOnNull<T>(this T? value) where T : class => value ?? throw new ArgumentNullException();
    }
​
    public class Program
    {
        public static void Main()
        {
            Console.WriteLine("Environment version: {0} ({1}), {2}", System.Runtime.InteropServices.RuntimeInformation.FrameworkDescription , Environment.Version, Environment.OSVersion);
            Console.WriteLine("System.Text.Json version: " + typeof(JsonSerializer).Assembly.FullName);
            Console.WriteLine();
​
            try
            {
                TestClass.Test();
            }
            catch (Exception ex)
            {
                Console.WriteLine("Failed with unhandled exception: ");
                Console.WriteLine(ex);
                throw;
            }
        }
    }
​

Dumping object(System.Collections.Generic.List`1[RootObject])
[
   {
   cuid              : 1338857734894
   invitationStatus  : invite_accepted
   isEnabled         : True
   userProperties    :
                    {
                    department  : IS
                    email       : jsmith@test.org
                    mobile      : (111) 333-4444
                    name        :
                                  {
                                  familyName  : Smith
                                  givenName   : John
                                  }
                    role        : Developer
                    specialty   : Development
                    }
   }
]

Cached Result
Last Run:	1:44:17 am
Compile:	0.22s
Execute:	0.204s
Memory:	1014.67kb
CPU:	0.281s

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